Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
050030goodexcellent41excellent
040029goodexcellent41excellent
030028goodexcellent41excellent
020030goodexcellent51excellent
010035goodexcellent51excellent
000037lightly pollutedexcellent41excellent
230031goodexcellent51excellent
220037lightly pollutedexcellent51excellent
210022goodexcellent41excellent
20008excellentexcellent11excellent
19007excellentexcellent11excellent
18005excellentexcellent11excellent
17005excellentexcellent11excellent
16005excellentexcellent11excellent
15004excellentexcellent11excellent
14004excellentexcellent11excellent
13005excellentexcellent11excellent
12006excellentexcellent11excellent
11006excellentexcellent11excellent
10009excellentexcellent21excellent
090015goodexcellent31excellent
080020goodexcellent31excellent
070023goodexcellent31excellent
060025goodexcellent31excellent